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Finding the Fourth Proportional to 18,569.26, 27,862.98 and 9,210.16

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Solution

The fourth proportional to 18,569.26, 27,862.98 and 9,210.16 is: 13,819.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,569.26 : 27,862.98 = 9,210.16 : x
  2. Step 2: Convert to fraction form
    18,569.26/27,862.98 = 9,210.16/x
  3. Step 3: Cross multiply
    18,569.26x = 27,862.98 × 9,210.16
  4. Step 4: Simplify right side
    18,569.26x = 256,622,503.88
  5. Step 5: Solve for x
    x = 256,622,503.88/18,569.26
  6. Step 6: Final answer
    x = 13,819.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.